asked on

Changing Text Color

I've created a Dialog-based application (using Visual C++) in which users enter in information and submit it to be processed. I have an edit control on the interface which will be used to display alert messages to the user if they enter in invalid information. I want the error message to appear in red and then in black when a new error occurs. However, I've been having a hard time finding information about changing text color in Edit Controls. It seems alot of people are interested in changing the background color, but I want to change the text color only.

Any ideas?? Thanks

captainkirk

check out this link:

http://codeguru.earthweb.com/editctrl/CEditExAndCStaticEx.shtml

Meir Rivkin

goto: http://www.codeguru.com/editctrl/CEditExAndCStaticEx.shtml

and download the demo project and source, its exactly what u need.

good luck

ASKER CERTIFIED SOLUTION

hakob

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cneaton

ASKER

Thanks for the code, hakob. But where would (or how) do I call the function to actually change the color. I want to display the text in red initially so I would have to call the function to invoke a change in text color (black -> red) and then I want to set the text back to black. How do I do that? I see the code that would be used to change the color. I just need to know how to invoke it.

Thanks!

cneaton

ASKER

I found some code that could be used to enhance the CEdit class in order to allow text color changes. However, when I tried to run it, I got errors. Here is the code:

//////////////////////HEADER FILE

class ColorEdit : public CEdit
{
protected:
COLORREF m_clrText;
COLORREF m_clrBack;
CBrush m_brBkgnd;

public:
ColorEdit();
void SetTextColor (COLORREF clrText);
void SetBkColor (COLORREF clrBack);
HBRUSH m_hbrBack;
virtual ~ColorEdit();

protected:
afx_msg HBRUSH ONCtlColor(CDC *pCD, CWnd* pWnd, UINT nCtlColor);

DECLARE_MESSAGE_MAP()
};

//////////////////////IMPLEMENTATION
#include "ColorEdit.h"

#define RGBRED RGB(128,0,0)
#define RGBWHITE RGB(255,255,255)
#define RGBBLACK RGB(0,0,0)

ColorEdit::ColorEdit()
{
m_hbrBack = ::CreateSolidBrush(RGBRED);
}

ColorEdit::~ColorEdit()
{
::DeleteObject(m_hbrBack);
}

BEGIN_MESSAGE_MAP(ColorEdit, CEdit)
ON_WM_CTLCOLOR_REFLECT()
END_MESSAGE_MAP()

ColorEdit::ColorEdit ()
{
m_clrText = RGBBLACK;
m_clrBack = ::GetSysColor(COLOR_3DFACE);
m_brBkgnd.CreateSolidBrush(m_clrBack);
}

void ColorEdit::SetTextColor(COLORREF clrText)
{
m_clrText = clrText;
Invalidate();
}

HRBRUSH ColorEdit::CtlColor (CDC* pDC, UINT nCtlColor)
{
pDC->SetTextColor(m_clrText);
pDC->SetBkColor(m_clrBack);
return (HBRUSH)m_brBkgnd;
}

I think the most significant error I got was:
error C2504: 'CEdit' : base class undefined

I called it the most significant error because I think that correcting this problem would eliminate a host of others. Any suggestions as to what I'm doing wrong?

Thanks so much!!

Pacman

include MFC-headers !